A sponge-type road pavement structure

Abstract

The invention discloses a sponge type road paving structure. Purified water transition areas are arranged on the two sides of a carriageway paving structure, then sidewalks are arranged, the carriageway paving structure is sequentially provided with a carriageway upper layer, waterproof bonding layers, a carriageway lower layer, a lower sealing layer and a water stabilizing base layer from top to bottom, and the purified water transition areas and a sidewalk paving structure are both of a layered composite structure. A 3-cm OGFC type road surface or 4-cm PA type road surface with the good permeability is adopted as the upper layer of a carriageway, therefore, the enough water permeability performance is guaranteed, and surface gathered water is effectively decreased; the waterproof bonding layers are arranged between the upper layer and the lower layer of the carriageway and on the side faces of the carriageway lower layer and the water stabilizing base layer, therefore, rainwater can be effectively prevented from infiltrating to the lower layer and the base layer, and the strength and durability of the road surface are guaranteed; the purified water transition areas are arranged between the carriageway and the sidewalks, road surface rainwater is purified and then flows into an accumulated water dispersing layer and a soil base layer, and therefore the accumulated water dispersing layer is prevented from being blocked by sludge in the water.

Description

technical field [0001] The invention relates to an urban road pavement structure, in particular to a sponge urban road pavement structure. Background technique [0002] The pavement structure layer refers to the paving layers that make up the pavement. According to their layers and functions, they mainly include the surface layer, base layer and cushion layer. With the development of the transportation industry, higher and higher requirements are put forward for the pavement structure. Under the premise of meeting the corresponding driving requirements, good drainage performance is also required. Durability is also an important index for evaluating the pavement structure. In order to ensure the long-term use of the pavement, it is necessary to have good durability. However, if the pavement has water accumulation, it will have a great impact on the durability. Therefore, it is required to propose a pavement structure with excellent water permeability. It can also meet the ne...

AI Technical Summary

Problems solved by technology

In order to ensure the long-term use of the pavement, it is necessary to have good durability. However, if the pavement has water accumulation, it will have a great impact on the durability. Therefore, it is required to propose a pavement structure with excellent water permeability. needs, but also to meet the needs of pedestrians

At present, in order to improve the water permeability of the pavement structure, the form of adding a cushion is mostly used. Although the drainage performance of the pavement is improved, it still cannot meet the requirements for use in areas with large rainfall.

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